JPH1087083A - Fold section feeder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the fold section feeder high in reliability, which can surely deliver a great number of fold sections piled up in a sashimi shape over a carrying device one by one while being led in order without accurately adjusting the respective parts of the device every time even when the various kinds of the fold sections are to be fed. SOLUTION: The belt 30 of a press conveyor device 27 is closely attached to the feeding side belt of a fold section moving conveyor device 14 where a moving belt obliquely rises up at the end part of a fold section feeding conveyor device 12 feeding fold sections arranged in a sashimi shape, the fold section is pulled up by the moving belt, and when let it be held so as to be fed to a gathering pocket, high pressure air is blown against the head fold section 11a, and also when the fold section themselves are to be separated, in order to prevent contact friction force between the feeding side belt surface of the fold section moving conveyor device 14 and the head fold section 11a from being lowered by high pressure air from an air injection nozzle 34, a relief forming means is provided, which makes air relief in such a way that no injected air comes in a space between the head fold section 11a and the surface of a carrying belt 15.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a signature feeding device, and more particularly, to a signature feeding device in which a large number of signatures are arranged side by side on a signature feeding device, and the signatures are sequentially sandwiched between belts of a belt conveyor device. The present invention relates to a signature supply device for supplying a signature to a customer.

[0002]

2. Description of the Related Art Heretofore, a signature supplying apparatus for automatically supplying a large number of signatures to a collating machine has been disclosed in, for example, Japanese Utility Model Publication No. 5-8277 as a "thin material supplying apparatus" and is well known. ing. Briefly describing the configuration of the signature supply device disclosed in this utility model publication, a transport device that supports a large number of signatures in a standing state and moves gradually, and a leading device at the tip of the transport device. It basically consists of a transfer device that sequentially feeds the signatures into the pocket for the collating machine.

[0003] The transport device is specifically one endless belt, and the transfer device is specifically composed of two endless belts. Of the two endless belts constituting the transfer device, one end of the first endless belt is located at the leading end of the transporting device, and its feed side belt surface is 90 ° away from the transporting device.
It extends upward at an angle of more than one degree, and the other end is set in a pocket for a collator.

The second endless belt has one end positioned near the one end of the first endless belt and directly above the transport device, while the other end has a collating machine similar to the other end of the first endless belt. Of the first endless belt, and is arranged in close contact with most of the feed side belt surface of the first endless belt.

[0005] A number of signatures are arranged on a transport device with their backs facing up or down. At this time, as described above, since the first endless belt is inclined at an angle of 90 degrees or more with respect to the transport device, the leading signature among a number of signatures placed on the transport device is It falls down so as to lean on the first endless belt, and comes into contact with the first endless belt.

As a result, each subsequent signature also overlaps with the front signature, like a domino, because the leading signature is inclined obliquely, in other words, overlaps with the preceding signature (this state is just It resembles the state of sashimi on a plate, so it is called "sashimi-like arrangement").

[0007] Since the leading signatures of a number of signatures arranged on the conveying device are in surface contact with the first endless belt, the leading signatures are separated by the first endless belt due to friction between them. Immediately before being dropped by its own weight, the second endless belt sandwiches the signature with the first endless belt and holds the signature securely, and transfers the signature to a pocket for a collating machine as it is. By repeating this operation, a large number of signatures on the transport device are sequentially transferred to the pocket for the collating machine.

[0008]

However, in the above-described conventional signature supplying apparatus, the case of a thick signature,
In the case where the friction on the signature surface is high depending on the printing state, etc., pulling up of each signature by the first endless belt does not work well, and a supply failure may occur.

That is, when a large number of signatures are arranged in the form of sashes on the transporting device, the adjacent signature on the rear side leans against the signature on the front side, so that the weight of the signature on the signature on the front side is reduced. Hang on. This means that in the case of a thick signature that is relatively heavy, the contact pressure between the leading signature and the adjacent signature behind it increases, and the friction between them increases.

As a result, when the leading signature is pulled up by the first endless belt, the next next signature is also pulled up at the same time. That is, a plurality of signatures are solidified and sent out, causing a so-called defective supply. Further, depending on the printing state of the signature surface, friction due to contact between the signatures increases, and in this case, a similar phenomenon occurs.

However, this is a delicate balance problem.
This phenomenon occurs when the paper becomes thicker or the contact friction between the signatures depends on extremely complicated factors such as paper quality and printing conditions. Was very difficult.

From the above, in the above-described conventional signature supply apparatus, the supply state can be known only after experimentally supplying the signature by the present apparatus. Each part of the device had to be adjusted to operate properly. And there was a problem that this adjustment work was also very difficult.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned conventional problems. Therefore, when feeding any type of signatures, the transport device can be adjusted without adjusting each part of the device each time. Provide a highly reliable signature supply device that can reliably send out a large number of signatures arranged one on top of the other in a sash-like manner from the top one by one, thereby improving the operation efficiency of signature supply. It is in.

[0014]

SUMMARY OF THE INVENTION The present invention relates to a signature feeding apparatus for feeding signatures to a collating machine, comprising: a signature feeding apparatus for arranging a large number of signatures side by side; And the other end is located in a collating pocket of the collating machine, and the transfer belt extends upward so as to stand at an angle of at least 90 degrees or more with respect to the signature feeding device. A signature transfer conveyor device, one end of which is located above and near the end of the signature feeder, and the other end of which is located in a collation pocket of the collating machine as in the signature transfer conveyor device; A holding conveyor device that is in close contact with the feed belt of the transfer conveyor device and that is arranged to move across the signature, and that is disposed at one or both of the upper and lower ends of the signature feeding device. , The most advanced part of the signature feeder An air ejection nozzle that blows high-pressure air toward the vicinity of the leading signature in contact with the conveyance belt of the signature transfer conveyor device, and a pressurizing and supplying air to the air ejection nozzle An air supply device, the signature transfer conveyor device,
An escape path forming means for escaping the ejected air so that the high-pressure air ejected from the air ejection nozzle does not enter between the feed side belt surface of the signature transfer conveyor device and the leading signature and lower the contact friction force. It is characterized by having.

[0015] In this case, the signature transfer conveyor device comprises:
When the leading signature comes into contact with the plurality of friction belts, the gap between the friction belts constitutes an escape path for releasing the jet air, and is constituted by a plurality of friction belts arranged in parallel at intervals. It is possible to prevent floating from the friction belt surface due to air jetted to the leading signature.

The signature transfer conveyor device is composed of two friction belts arranged in parallel at an interval and a transport belt disposed between the two friction belts. The thickness of the friction belt of the book is thicker than the thickness of the transport belt located therebetween, and the front surface of the feed belt is positioned by positioning the back surfaces of the feed belt portions of the friction belts and the transport belt in the same plane. The grooved portion formed by the height difference constitutes an escape path of the jet air formed between the leading signature and the feed side belt surface of the signature transfer conveyor device, and the leading signature is formed. Can be prevented from rising from the surface of the friction belt due to air jetted to the surface.

Further, in the case of this configuration, one support roller of the friction belt is disposed at an end of the signature feeding device,
The other supporting roller is disposed at a suitable position before the collating pocket of the collating machine, and one supporting roller of the conveyor belt is opposed to the front signature surface above the end of the signature feeding device. And the other support roller can be positioned in a collating pocket of the collating machine.

According to the signature supply apparatus of the present invention configured as described above, a number of signatures are arranged on the signature feeder with their backs facing up or down. Then, the leading signature inclines so as to lean against the transfer belt of the signature transfer conveyor device extending upward at an angle of at least 90 degrees with respect to the signature feeder. A number of other signatures placed on the device fold in a sash-like manner.

Next, high-pressure air is blown from the air jet nozzle toward the entire leading signature. The high-pressure air blown toward the entirety of the first signature is generated between the first signature in contact with the transfer belt of the signature transfer conveyor device and the belt surface, and the rear signature adjacent to the first signature. Get into the space.

However, high-pressure air that is about to enter between the leading signature and the transfer belt surface of the signature transfer conveyor device can escape through the escape path forming means provided in the transfer conveyor device. Therefore, the leading signature is prevented from rising from the surface of the transfer belt due to the jet air, and the contact frictional force between them is not reduced, and a predetermined frictional force with the leading signature is secured.

Therefore, the high-pressure air blown out from the air blowing nozzle and blown toward the entirety of the leading signature invades between the rearward and adjacent signatures and acts to efficiently separate them. become. To explain these phenomena in more detail, the thickness of the signature is not constant, and the thickness and size of the signature vary depending on various books and magazines. It cannot be fixedly installed in such a way that it is sprayed properly and intensively between the signatures.

However, adjusting the high-pressure air blowing direction of the air blowing nozzle for each signature to be handled cannot solve the troublesome adjustment of the conventional apparatus. Moreover, when high-pressure air is blown over the entire signature, the high-pressure air penetrates not only between the signature and the signature adjacent thereto but also between the signature and the surface of the transfer belt. As a result, the leading signature is lifted off the surface of the transfer belt, so that the contact frictional force is reduced and the leading signature cannot be lifted.

In the signature supplying apparatus of the present invention, such a problem can be solved by providing a means for forming an escape path for ejected air in the signature transfer conveyor apparatus, so that the ejected high-pressure air can be blown over the entire first signature. Without lowering the contact frictional force between the signature and the transfer belt, the signature can be effectively penetrated between the leading signature and the adjacent signature to separate them. In addition, various signatures can be sent out to the collating machine without causing a supply failure without any adjustment of each part of the apparatus.

[0024]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a signature supplying apparatus according to the present invention. FIG.
1 shows a signature supply device 10 according to an embodiment of the present invention. The signature supply device 10 according to this embodiment includes a signature feeding device 12 on which a number of signatures 11 are arranged and placed. The signature feeding device 12 is constituted by a belt conveyor device.

As is apparent from FIG. 1, the signature feeding conveyor device 12 has a delivery side end located lower than the opposite end, so that the delivery side belt surface is directed toward the delivery side end. It is a slope that goes down.
The signature feeding conveyor device 12 includes an electric motor device 13
Is operated intermittently. The intermittent operation of the electric motor device 13 is controlled by a control device (not shown) in response to a signal from a limit switch described later.

The transfer belt 1 of the signature transfer conveyor device 14 is attached to the delivery side end of the signature transfer conveyor device 12.
5 rises at an angle of about 120 degrees with respect to the belt surface of the signature feeding conveyor device 12 and passes upward. Therefore, the signature feeding conveyor device 1
A large number of signatures 11 placed on the belt surface of No. 2 come into contact with the leading signature 11a located at the sending-side end so as to fall on the friction belt 15 of the signature transfer conveyor device 14.

As a result, the large number of signatures 11 on the signature feeding conveyor device 12 may be changed so that the leading signature 11a is inclined obliquely, so that all other signatures 11 behind the signature 11a are also adjacent to the front signature. The fold 11 folds over and falls down, and is arranged in a so-called sash-like shape.

As shown in FIG. 2, the signature transfer conveyor device 14 is arranged between two friction belts 15 arranged in parallel at intervals and between the two friction belts 15. It is composed of a normal transport belt 16. These two friction belts 15 are hung on a pair of friction belt driving and supporting rollers 17 arranged on both sides of a belt supporting roller 12a arranged at the sending-out end of the signature feeding conveyor device 12.

That is, as shown in FIG. 2, the belt support roller 12a disposed at the delivery side end of the signature feeding conveyor device 12 and one friction belt driving / supporting roller 17 in the signature transfer conveyor device 14 The belt support roller 12 is supported on a drive shaft 18 keyed to a friction belt drive and support roller 17 by a bearing (not shown) or the like so as to be freely rotatable (free rotation), so that the center axis is shared. Are located.

A pulley (not shown) is attached to an end of the drive shaft 18. The pulley is connected to an electric motor 19.
And a power transmission belt 20. As a result, when the electric motor 19 is operated, the rotational force of the friction belt driving and supporting roller 17 is transmitted to the power transmission belt 2.
0, the pulley and the drive shaft 18 are rotated.

The other friction belt support roller 21 of the signature transfer conveyor device 14 is positioned at a suitable position before a pocket for a collating machine (not shown), that is, a collation pocket 22, and has a relatively long overall length. It is designed to be short. As shown in FIGS. 1 and 2, one of the support rollers 23 that supports the normal transport belt 16 disposed at the interval between the two friction belts 15 is provided by the friction belt drive and support roller 17. It is positioned above and near the middle of the signature 11a on the signature feed conveyor device 12 in the height direction.

The other support roller 24 for supporting the transport belt 16 is positioned in a collating pocket 22 of a collating machine. That is, as described above, the feed-side belt portion of the transport belt 16 is moved from the vicinity of the central portion in the height direction of the leading signature 11a on the signature feeding conveyor device 12 to the other support roller 21 for supporting the friction belt 15. After passing through the gap, the posture is changed to a horizontal state to reach the collating pocket 22 of the collating machine.

The transport belt 16 is moved by rotating a roller 25 supporting the return belt portion by an electric motor 26. The thickness of the transport belt 16 is smaller than the thickness of the two friction belts 15 located on both sides in a certain length range in the longitudinal direction, and has a lower surface friction than the friction belt 15.

Further, the two friction belts 15 and the transport belt 16 are supported such that the back surfaces of the respective feed-side belt portions are located in the same plane in a range where the two belts run in parallel. In this case, a height difference, that is, a step, is formed on the surface of the feeding side belt portion.

In other words, referring to FIG.
The surface of the conveyor belt 16 located between the two friction belts 15 contacting the surface a is located at a position lower than the surface of the friction belt, and therefore, there is substantially a slight distance between the two friction belts 15. A groove is formed, so that the surface of the leading signature 11a does not contact the surface of the conveyor belt 16.

A holding conveyor device 27 is provided along the signature transfer conveyor device 14 from above the vicinity of the end of the signature feeding device 12 to the gathering pocket 22 of the gathering machine. The pressing conveyor device 27 will be described more specifically. This conveyor device is also a belt conveyor device, and a support roller 28 at one end thereof is located above and near the end of the signature feeding device 12.

The supporting roller 29 at the other end is located in the collating pocket 22 in the same manner as the supporting roller 24 of the conveyor belt 16 of the signature transfer conveyor device 14. The pressing belt 30 of the pressing conveyor device 27 has a plurality of rollers 31 as appropriate and is approximately the same width as the transport belt 16 of the signature transfer conveyor device 14 and is in close contact with the surface of the feed side belt portion.

As shown in FIG. 1, the holding conveyor device 27 has two separate frame structures 32a, 3a,
2b, and the pressing belt 30 includes a plurality of rollers 3 attached to these two frame structures 32a and 32b.
1 and the support rollers 28 and 29 described above.

One frame structure 32a is formed along a sloped section where the signature transfer conveyor device 14 rises at an angle of about 118 degrees to the belt surface of the signature feed conveyor device 12 and extends upward. It is the part which is arranged. The other frame structure 32b is a portion where the signature transfer conveyor device 12 is arranged along a horizontal portion that changes from the above-described inclined portion to a horizontal state and reaches the collation pocket 22.

The two frame structures 32a and 32b are both mounted on the fixed base 33 of the signature supplying apparatus 10. In particular, the frame structure 32a disposed along the aforementioned inclined portion of the signature transfer conveyor device 14
Is slidably supported by a holding member 35 that is rotatably mounted about a fulcrum shaft 34.

Accordingly, in the frame structure 32a, the support roller 28 at one end is rotated by the rotation of the holding member 35 about the fulcrum shaft 34 so that the conveying belt 1 of the signature transfer conveyor device 14 is moved.
6 can be moved away from, pressed into contact with, or rocked. Since the lower end of the holding member 35 holding the frame structure 32a is always drawn toward the signature transfer conveyor device 14 by the spring 37, the frame structure 3
One end of 2a is in pressure contact with the signature transfer conveyor device 14.

Moreover, since the frame structure 32a is slidable with respect to the holding member 35, the support roller 28 at one end moves up and down along the transfer belt of the signature transfer conveyor device 14. The vertical sliding of the frame structure 32a is performed by the holding member 3
5 is engaged with a pinion (not shown) provided at the end of the vertical adjustment rod 36 attached to the rack 5 and a rack (not shown) provided on the frame structure 32a.

In this frame structure 32a, an air ejection nozzle 3 is attached to the tip of an arm 38 fixed to the support shaft of the support roller 28 attached to one end, which is the lower end.
9 is attached to swing freely. The air ejection nozzle 39 is usually directed in a direction in which high-pressure air can be blown from obliquely above the leading signature 11a.

As is apparent from FIG. 1 and particularly from FIG. 2, high-pressure air can be blown also from below onto the leading signature 11a located at the delivery side end of the signature delivery conveyor device 12. Conveyor system 1
The air ejection nozzles 40 are provided on both sides near the end on the delivery side of No. 2.
Is installed.

The two air ejection nozzles 39, 40 installed above and below the leading signature 11a in this manner.
Are connected to hoses (not shown) for supplying high-pressure air. These hoses are connected to respective outlet ports of an electromagnetic switching valve device (not shown), and an inlet port of the electromagnetic switching valve device is connected to a hose. It is connected to a high-pressure air supply device (not shown) that pressurizes and supplies air.

In the signature transfer conveyor device 14, one of the support rollers 23 for supporting the ordinary conveyor belt 16 disposed between the two friction belts 15 and the delivery-side end portion of the signature feed conveyor device 12 are used. A limit switch 41 for controlling the intermittent operation of the electric motor 13 for moving the signature feeding conveyor device 12 is provided between the friction support belt 12a and the belt support roller 12a. is set up.

The limit switch 41 is installed so that its switch push button protrudes from the surface position of the two friction belts 15 in the direction of the signature feeding conveyor device 12. The signature 11a at the top of the section abuts the switch push button and can push it.

Next, the signature supply device 1 according to this embodiment
The operation of 0 will be described. A number of signatures 11 are arranged on a signature feeding conveyor device 12 with their backs facing upward.
Then, the leading signature 11a is moved to the signature feeding conveyor device 12
Friction belts 15 of the signature transfer conveyor device 14 extending upward at an angle of about 120 degrees with respect to the belts
, And a large number of other signatures 11 placed on the signature feeding conveyor device 12 are folded in a sash-like manner.

Next, the height of the air ejection nozzle 39 is adjusted to about 15 mm from the back of the signature 11a. This adjustment is performed by rotating the arm 38 to change its angle, or by sliding the frame structure 32a to change its height. Then, simultaneously with the start of the operation of the signature supplying apparatus 10, high-pressure air is blown from the air ejection nozzle 39 toward the entirety of the leading signature 11a. The high-pressure air blown toward the entirety of the first signature 11a is transmitted between the first signature 11a in contact with the friction belt 15 of the signature transfer conveyor device 14 and the friction belt 15 and the first signature 11a. And the adjacent rear signature 11b.

However, the high-pressure air that is about to enter between the leading signature 11a and the friction belt 15 of the signature transfer conveyor device 14 causes the surface of the normal conveyor belt 16 located between the friction belts 15 to become Since the groove portion is formed to descend to the surface, the groove portion serves as an escape path, and high-pressure air escapes below the signature transfer conveyor device.

Accordingly, as a result, high-pressure air does not enter the contact surface between the leading signature 11a and the friction belt 15, so that the leading signature 11a rises from the surface of the friction belt 15 due to the high-pressure air. Is prevented, the contact frictional force between them is not reduced, and a predetermined frictional force with the leading signature is secured.

On the other hand, the high-pressure air jetted from the air jet nozzle 39 and blown toward the entirety of the leading signature 11a also enters the space between the rear signature 11b and FIG.
As shown in (1), the function of efficiently separating the two is achieved.

As described above, in the signature supply device 10,
When high pressure air is blown between the leading signature 11a and the signature 11b adjacent to the leading signature 11a to forcibly separate them, the high pressure air ejected from the air ejection nozzle 39 causes the leading signature 1
As described above, the leading signature 11a does not rise from the friction belt 15 toward the back side of the surface 1a (the contact surface side with the friction belt 15).

Therefore, the high-pressure air blown from the air jet nozzle 39 is transmitted to the signature 11a at the head and the signature 1 adjacent to the signature 11a.
1b, there is no need to accurately direct the air jet nozzle 39, and therefore it is not necessary to produce the air ejection nozzle 39 or to require high precision in the mounting position, thereby reducing the production cost of the device.
Further, it is not necessary to adjust the direction of the air ejection nozzle 39 with high accuracy each time the thickness or size of the signature changes during use.

About 0.1 to 1 second after the high pressure air starts to be ejected from the air ejection nozzle 39, the signature transfer conveyor device 14
Is activated. The holding conveyor device 27 has no power source, and the holding belt 30 is used for the signature transfer conveyor device 1.
4 is moved by being in close contact with the transport belt 16. Then, the leading signature 11a is pulled upward by friction with the friction belt 15.

At this time, as described above, the leading signature 11a
And the signature 11b adjacent to the signature 11b are separated by high-pressure jet air, so that the signatures are not collectively pulled up. Top signature 1 lifted upward
1a is immediately transported to the collating pocket 22 of the collating machine while being sandwiched between the retaining belt 30 of the retaining conveyor device 27. Even if the thickness of the signature to be supplied is large, the holding member 35 supporting the holding conveyor device 27 is
Since it is rotatable around 4, no operational problems occur, and no adjustments are necessary.

With such a structure, that is, a structure in which the holding member 35 supporting the holding conveyor device 27 is rotatable about the fulcrum shaft 34, even if the signatures are collectively pulled up by any chance, the holding conveyor is held. The device 27 automatically escapes, and it is possible to prevent occurrence of an accident such as inoperability.

When the leading signature 11a is lifted upward by the signature transfer conveyor device 14, the leading signature 11a is brought into a non-contact state with the push button of the limit switch 41 and the pressing thereof is released. When the push button is released, the electric motor 13 is driven, the belt of the signature feed conveyor device 12 is moved, and the next signature 11b is brought into close contact with the friction belt 15 of the signature transfer conveyor device 14, and at the same time, the limit switch 41 is again turned on. The operation of the signature feeding conveyor device 12 is stopped by pressing the push button of (1). Thereafter, the above-described operation is repeated, whereby a number of signatures 11 on the signature sending conveyor device 12 are sequentially supplied to the collating pockets 22 by the signature transfer conveyor device 14.

Depending on the signature supplied to the collating machine,
As shown in FIG. 4, there is a case where the user places the signature on the signature feeding conveyor device 12 with the back facing downward. In such a case, the air ejection nozzles 40 installed on both sides near the delivery side end of the signature delivery conveyor device 12 so as to blow high pressure air from the lower side, that is, the back direction, to the leading signature 11a.
Is used.

As described above, the air jet nozzles 39 and 40 to be used are selected according to the back direction (upward or downward) of the signature to be put on the signature feed conveyor device 12. In this case, the electromagnetic switching valve device described above is used. By changing the flow direction of the air from the high-pressure air supply source, the use of either one of the air ejection nozzles 39 and 40 can be easily changed.

In the signature supply device according to the above-described embodiment, the transfer belt in the signature transfer conveyor device is
A normal conveyor belt is arranged between two friction belts arranged in parallel at an interval so that the normal conveyor belt partially overlaps in the conveyance direction, and the surface of the latter conveyor belt is slightly lowered from the surface of the friction belt to form a groove. Although the portion is formed as an escape route for high-pressure air, a plurality of friction belts having a relatively small width may be arranged in parallel at intervals.

Further, in the above-described embodiment, the holding conveyor device is constituted by two frame structures, and is disposed at a portion along the signature transfer conveyor device which rises while being inclined upward from the end of the signature feed conveyor device. In place of the frame structure, the arm is pivotally attached to the fixed base 33, and a simple structure is adopted in which the holding belt support roller of the holding conveyor device is attached to the tip of the arm. It may be possible to respond.

[0063]

As described above, according to the signature supply device of the present invention, the leading signature and the adjacent signature are prevented in order to prevent the signatures from being collectively pulled up by the signature transfer conveyor device. When high-pressure air is blown between the signatures to force them to separate from each other, the high-pressure air ejected from the air ejection nozzle is directed toward the back of the first signature (the contact surface with the transfer belt). The effective signature escapes so that the leading signature does not rise from the transport belt.

Therefore, it is not necessary to direct the high-pressure air blown out from the air ejection nozzle precisely only between the leading signature and the signature adjacent thereto. Therefore, high precision is required for the production and mounting position of the air ejection nozzle. There is no need to obtain it, the production cost of the device can be reduced, and the direction of the air ejection nozzle does not need to be adjusted so precisely every time the thickness or size of the signature changes during use. Properties can be significantly improved.

[Brief description of the drawings]

FIG. 1 is a side view showing a signature supply device according to an embodiment of the present invention.

FIG. 2 is a partial front view showing one end of a signature transfer conveyor device in the signature supply device obtained along the line 2-2 in FIG. 1;

FIG. 3 is a partially enlarged side view of the signature supply device shown in FIG. 1;

FIG. 4 is a partial side view similar to FIG. 3, showing a usage example in which a number of signatures are placed with their backs facing down on a signature feeding conveyor device in the signature supply device shown in FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Signature supply device 11 Signature 11a Leading signature 11b Signature adjacent to leading signature 12 Signature feeding conveyor device 12a Belt support roller 13 Electric motor device 14 Signature transfer conveyor device 15 Friction belt 16 Conveyor belt 17 Friction Belt drive and support roller 18 Drive shaft 19 Electric motor 20 Power transmission belt 21 Friction belt support roller 22 Collating pocket 23 Support roller 24 Support roller 25 Roller 26 Motor 27 Press conveyor device 28 Support roller 29 Support roller 30 Press belt 31 Roller 32a Frame structure part 32b Frame structure part 33 Fixed frame 34 Support shaft 35 Holding member 36 Vertical adjustment rod 37 Spring 38 Arm 39 Air ejection nozzle 40 Air ejection nozzle

Claims (4)

[Claims] 1. A signature feeder for feeding signatures to a signature gathering machine, comprising: a signature feeder for arranging a number of signatures side by side; and a signature feeder having one end located at an end of the signature feeder. A signature transfer conveyor device having an end located in a collection pocket of the signature machine and extending upwardly so that a transfer belt rises at an angle of at least 90 degrees or more with respect to the signature feeder; Is located above the vicinity of the end of the signature feeding device, the other end is located in the collating pocket of the collating machine in the same manner as the signature transporting conveyor device, and the feeding side belt of the signature transporting conveyor device. A holding conveyor device which is disposed so as to be in close contact with the signature feeding device, and which is disposed on one or both of the upper and lower ends of the signature feeding device; Transfer the signature at the tip An air ejection nozzle that blows high-pressure air toward the leading signature in contact with the transfer belt of the conveyor device, and a pressurized air supply device that pressurizes and supplies air to the air ejection nozzle. The signature transfer conveyor device is configured such that high-pressure air blown from the air ejection nozzle does not enter between the feed-side belt surface of the signature transfer conveyor device and the leading signature and reduce the contact frictional force. A signature supply device, characterized in that the signature supply device is provided with escape route forming means for releasing the jet air. 2. The signature transfer conveyor device comprises a plurality of friction belts arranged in parallel at intervals, and when the leading signature comes into contact with the plurality of friction belts, each of the friction belts 2. The signature supplying apparatus according to claim 1, wherein the interval serves as an escape path for releasing the jet air, and prevents the air from being jetted to the leading signature from rising from the surface of the friction belt. 3. The signature transfer conveyor device comprises: two friction belts arranged in parallel at an interval; and a transport belt disposed between the two friction belts. The thickness of the friction belt is thicker than the thickness of the transport belt located therebetween, and the front side of the feed side belt portion of each of the friction belts and the transport belt is positioned in the same plane, so that the surface of the feed side belt is A height difference is provided, and a groove-shaped portion formed by the height difference forms an escape path of jet air formed between the leading signature and a feed-side transfer belt surface of the signature transfer conveyor device. The signature supply device according to claim 1 or 2, wherein the signature supply device prevents floating from the surface of the transfer belt due to air jetted to the signature. 4. The conveyor belt according to claim 1, wherein one of the support rollers of the friction belt is located at an end of the signature feeding device, and the other support roller is located at a suitable position before a collating pocket of the collating machine. One of the support rollers is located above the end of the signature feeding device and faces the surface of the leading signature, and the other support roller is positioned in a collation pocket of the collator. The signature supply device according to claim 3, wherein